Citalopram vs Phenytoin

## Citalopram vs Phenytoin: Overview

This comparison examines the pharmacological differences between **Citalopram** and **Phenytoin**.

## Mechanism of Action

**Citalopram**: Selective serotonin reuptake inhibitor (SSRI); racemic mixture with escitalopram as active S-enantiomer.

**Phenytoin**: Sodium channel blocker stabilizing inactive state.

## Pharmacokinetics

**Half-life**: Citalopram — 35 hours; Phenytoin — 22 hours.

## Chemical Properties

**Molecular Formula**: Citalopram — C20H21FN2O; Phenytoin — C15H12N2O2.

**Molecular Weight**: Citalopram — 324.3920 g/mol; Phenytoin — 252.2680 g/mol.

**Type**: Citalopram — Small molecule; Phenytoin — Small molecule.